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Power system separation decision space screening method

A technology of power system and decision space, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as no solution, adverse effects of feasible solution space, and reduced engineering application value

Active Publication Date: 2008-03-05
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

However, the simplification method of static partition aggregation currently used will lose a large amount of original information of the system on the one hand, which may bring adverse effects on the feasible solution space, or even cause no solution; on the other hand, static node aggregation often relies on experience and has many problems. High subjectivity reduces its engineering application value

Method used

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  • Power system separation decision space screening method
  • Power system separation decision space screening method
  • Power system separation decision space screening method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0175] 1. Establish a generalized characteristic analysis model of the power system

[0176] 1.1 List the differential algebraic equations describing the dynamics of the power system

[0177] 1.1.1 Differential equations for generator rotor angle dynamics

[0178] Let N=n+1 node power system (node ​​numbers are 0, 1, 2, ..., n), where n G +1 nodes are directly connected to generators (corresponding node numbers are 0, 1, 2, ..., n G , generator numbers are 0, 1, 2, ..., n G ), n L load nodes, numbered (n G +1, ..., n). There is one reference generator in the system (connected node number 0).

[0179] List the differential equations on all generator nodes as shown in equation (1).

[0180] ω . i = 1 m i ...

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Abstract

This invention relates to filtration method for stepout decision spaces of power system utilizing the regularity in the stepout feasible solution space distribution of the power system under the precondition not losing the stepout feasible solution to filter sub-maps of an original network directly to reduce the decision-making space reasonably not using the method for dividing system regions then converging them into nodes to turn the current ordinary search method to be suitable for large scale systems of not being simplified fully so as to make possible the on-line decision for stepout strategy of large scale network.

Description

technical field [0001] A power system splitting decision space screening method belongs to the technical field of power safety. [0002] Improving the security and stability of the power system is the top priority of the power operation department. The "Guidelines for Power System Safety and Stability" promulgated by our country stipulates three levels of safety and stability standards for the ability of my country's power grid to withstand large disturbances. When a fault occurs and stable operation cannot be maintained, it is necessary to prevent the system from crashing and minimize load loss. Disassembly is an important means of control to meet the above-mentioned third-level safety and stability standards and prevent the system from collapsing completely. It is the control of the power system to decompose the system into several isolated islands of power balance under the condition of large disturbance and system integrity cannot be maintained. [0003] The present inve...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02H7/26
Inventor 乔颖沈沉卢强
Owner TSINGHUA UNIV
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